scholarly journals Synthesis, Crystal Structure, and Antimicrobial Properties of a Novel 1-D Cobalt Coordination Polymer with Dicyanamide and 2-Aminopyridine

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Amah Colette Benedicta Yuoh ◽  
Moise Ondoh Agwara ◽  
Divine Mbom Yufanyi ◽  
Mariam Aseng Conde ◽  
Rajamony Jagan ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Metal Ion ◽  
Antimicrobial Properties ◽  
X Ray Diffraction ◽  
Coordination Environment ◽  
One Dimensional ◽  
Distorted Octahedral ◽  
Elemental Analyses ◽  
Cobalt Coordination ◽  
Distorted Octahedral Coordination Environment

A novel one-dimensional coordination polymer bis(2-aminopyridine)-μ-bis(dicyanamido) cobaltate(II) has been synthesized and characterized by elemental analyses and infrared and ultraviolet visible spectroscopies and the structure has been determined by single crystal X-ray diffraction. Co(II) ion in the complex is coordinated to two axial 2-aminopyridine ligands through the pyridine N-atom and four equatorial dicyanamide ligands to give a CoN6 slightly distorted octahedral coordination environment around the metal ion. The amino N-atom forms intrachain hydrogen bonds. Antimicrobial screening of the complex against eight pathogenic microorganisms (four bacteria and four fungi) isolated from humans, indicates that the complex is moderately active.

Synthesis, Structural Characterization and Photoluminescence of Six-Coordinated Zn(II) Complex Material

2011 ◽  
Vol 321 ◽  
pp. 63-66
Author(s):  
Li Hua Wang
Keyword(s):  
Crystal Packing ◽  
Fluorescence Emission ◽  
Chain Structure ◽  
X Ray Diffraction ◽  
Coordination Environment ◽  
Complex Material ◽  
One Dimensional ◽  
Distorted Octahedral ◽  
Pyrazinecarboxylic Acid ◽  
Distorted Octahedral Coordination Environment

Six-coordinated Zn (II) complex material {bis[5-methyl-2-pyrazinecarboxylic acid] Zinc(II)} was synthesized and determined by single-crystal X-ray diffraction, The results of crystal structure show that Zn (II) complex material crystallizes in a triclinic system, the Zn2+ ion is in a distorted octahedral coordination environment. In the crystal packing, the molecules form a one-dimensional chain structure by O-H•••O hydrogen bonds and π-π interaction of pyrazine rings. The photoluminescence of the Zn(II) complex material was tested, the result shows that the complex displays a fluorescence emission maximum at 525 nm.

The two-dimensional coordination polymer poly[diaqua(μ2-1H-imidazo[4,5-f][1,10]phenanthroline)-μ4-sulfato-μ3-sulfato-dicadmium(II)]

2014 ◽  
Vol 70 (8) ◽  
pp. 770-772 ◽  
Author(s):  
Xiao-Min Hao ◽  
Gang Chen ◽  
Chang-Sheng Gu ◽  
Ji-Wei Liu
Keyword(s):  
Coordination Polymer ◽  
Three Dimensional ◽  
Supramolecular Network ◽  
Two Dimensional ◽  
Coordination Environment ◽  
One Dimensional ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Trigonal Prismatic ◽  
Distorted Octahedral Coordination Environment

In the title coordination polymer, [Cd2(SO4)2(C13H8N4)(H2O)2]n, there are two crystallographically independent CdIIcentres with different coordination geometries. The first CdIIcentre is hexacoordinated by four O atoms of four sulfate ligands, one water O atom and one N atom of a 1H-imidazo[4,5-f][1,10]phenanthroline (IP) ligand, giving a distorted octahedral coordination environment. The second CdIIcentre is heptacoordinated by four O atoms of three sulfate ligands, one water O atom and two N atoms of one chelating IP ligand, resulting in a distorted monocappedanti-trigonal prismatic geometry. The symmetry-independent CdIIions are bridged in an alternating fashion by sulfate ligands, forming one-dimensional ladder-like chains which are connected through the IP ligands to form two-dimensional layers. These two-dimensional layers are linked by interlayer hydrogen bonds, leading to the formation of a three-dimensional supramolecular network.

A new one-dimensional Cd(II) coordination polymer with a two-dimensional supramolecular architecture: synthesis, structural characterization and fluorescence properties

2019 ◽  
Vol 74 (4) ◽  
pp. 341-345
Author(s):  
Kai-Long Zhong ◽  
Wei Song ◽  
Chao Ni ◽  
Guo-Qing Cao
Keyword(s):  
Coordination Polymer ◽  
Fluorescence Properties ◽  
Gravimetric Analysis ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
Organic Structure ◽  
Distorted Octahedral ◽  
Metal Organic ◽  
Crystal Structural

AbstractA new coordination polymer [Cd(C10H8N2)2 (C10H4O8)]n (C10H8N2 = 2,2′-bipyridine and C10H4O8 = 2,5-dicarboxybenzene-1,4-dicarboxylate) has been hydrothermally synthesized and characterized by elemental analysis, infrared spectroscopy, thermal gravimetric analysis and single-crystal X-ray diffraction. Crystal structural analysis reveals that the CdII cation is coordinated by two 2,5-dicarboxybenzene-1,4-dicarboxylate ligands and two 2,2′-bipyridine molecules, forming a distorted octahedral CdN4O2 coordination geometry. The 2,5-dicarboxybenzene-1,4-dicarboxylate ligands link the CdII cations to generate a one-dimensional metal-organic structure running along the [0 1 0] direction. Adjacent chains are further connected by carboxyl-carboxyl O–H···O hydrogen bonds, resulting in a two-dimensional supermolecular architecture running parallel to the (1 0 0) plane in the solid state. The fluorescence properties of the complex were investigated.

Two complexes of PtIVand AuIIIwith 2,2′-dipyridylamine and 2,2′-dipyridylaminide ligands

2014 ◽  
Vol 70 (12) ◽  
pp. 1133-1137
Author(s):  
Alexander N. Chernyshev ◽  
Vadim Yu. Kukushkin ◽  
Matti Haukka
Keyword(s):  
Metal Atom ◽  
Weak Interactions ◽  
Structural Features ◽  
Coordination Environment ◽  
One Dimensional ◽  
Square Planar ◽  
Distorted Octahedral ◽  
Chloride Ligands ◽  
The Difference ◽  
Distorted Octahedral Coordination Environment

Two noble metal complexes involving ancillary chloride ligands and chelating 2,2′-bipyridylamine (Hdpa) or its deprotonated derivative (dpa), namely [bis(pyridin-2-yl-κN)amine]tetrachloridoplatinum(IV), [PtCl4(C10H9N3)], and [bis(pyridin-2-yl-κN)aminido]dichloridogold(III), [AuCl2(C10H8N3)], are presented and structurally characterized. The metal atom in the former has a slightly distorted octahedral coordination environment, formed by four chloride ligands and two pyridyl N atoms of Hdpa, while the metal atom in the latter has a slightly distorted square-planar coordination environment, formed by two chloride ligands and two pyridyl N atoms of dpa. The difference in conjugation between the pyridine rings in normal and deprotonated 2,2′-dipyridylamine is discussed on the basis of the structural features of these complexes. The influence of weak interactions on the supramolecular structures of the complexes, providing one-dimensional chains of [PtCl4(C10H9N3)] and dimers of [AuCl2(C10H8N3)], are discussed.

scholarly journals catena-Poly[[diaqua(1H-imidazo[4,5-f][1,10]phenanthroline)cobalt(II)]-μ-sulfato]

2009 ◽  
Vol 65 (6) ◽  
pp. m618-m618 ◽  
Author(s):  
Jian Yu
Keyword(s):  
Three Dimensional ◽  
Title Complex ◽  
Water Molecules ◽  
Coordination Environment ◽  
One Dimensional ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Coordinated Water ◽  
Distorted Octahedral Coordination Environment

The CoIIion in the title complex, [Co(SO4)(C13H8N4)(H2O)2]n, has a slightly distorted octahedral coordination environment formed by two O atoms from two symmetry-related bridging sulfate ligands, two N atoms from a bis-chelating 1H-imidazo[4,5-f][1,10]phenanthroline (IPL) ligand and two O atoms from coordinated water molecules. The bridging sulfate ligands connect CoIIions to form a one-dimensional chain along theb-axis direction. In the crystal structure, intermolecular O—H...O, O—H...N and N—H...O hydrogen bonds link the chains into a three-dimensional network.

A Rare Example of a Dinuclear Cobalt(II) Complex with Dipicolinate and Bridging 2-Aminopyrazine Ligands. Preparation, Structural, Spectroscopic and Thermal Characterization

2011 ◽  
Vol 66 (8) ◽  
pp. 813-818 ◽  
Author(s):  
Masoumeh Tabatabaee ◽  
Boris-Marko Kukovec ◽  
Vajieh Razavimahmoudabadi
Keyword(s):  
Dipicolinic Acid ◽  
3D Structure ◽  
Thermal Characterization ◽  
Water Molecules ◽  
X Ray Diffraction ◽  
Coordination Environment ◽  
Distorted Octahedral ◽  
Elemental Analyses ◽  
Coordinated Water ◽  
Oxygen Atoms

A dinuclear cobalt(II) complex, [Co2(H2O)4(dipic)2(μ-apyz)] (dipicH2 = pyridine-2,6-dicarboxylic (dipicolinic) acid, apyz = 2-aminopyrazine) (1), has been hydrothermally synthesized and characterized by elemental analyses, spectroscopic methods (IR, UV/Vis), thermal analysis as well as by X-ray diffraction studies. The dinuclear complex is composed of two cobalt(II) ions bridged by a 2-aminopyrazine molecule. Each cobalt(II) ion is coordinated by one nitrogen and two oxygen atoms of the tridentate dipicolinate anion, one heterocyclic nitrogen atom of the 2-aminopyrazine and two oxygen atoms of coordinated water molecules. The resulting geometry for the CoN2O4 coordination environment can be described as distorted octahedral. Various hydrogen bonds of the type O-H···O and N-H···O are also present in the crystal structure. This arrangement leads to the formation of a 3D structure.

scholarly journals Synthesis and crystal structure of a one-dimensional chain-like strontium(II) coordination polymer built of N-methyldiethanolamine and isobutyrate ligands

2021 ◽  
Vol 77 (7) ◽  
pp. 703-707
Author(s):  
Maximilian Seiss ◽  
Sebastian Schmitz ◽  
Martin Börner ◽  
Kirill Yu. Monakhov
Keyword(s):  
Coordination Polymer ◽  
Isobutyric Acid ◽  
Chain Structure ◽  
Polymeric Chain ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
One Pot ◽  
Coordination Environment ◽  
One Dimensional ◽  
The One

The one-dimensional coordination polymer (I) [Sr(ib)2(H2mda)] n (Hib = isobutyric acid, C4H8O2, and H2mda = N-methyldiethanolamine, C5H13NO2), namely, catena-poly[[(N-methyldiethanolamine-κ3 O,N,O′)strontium(II)]-di-μ2-isobutyrato-κ3 O,O′:O;κ3 O:O,O′], was prepared by the one-pot aerobic reaction of [Zr6O4(OH)4(ib)12(H2O)]·3Hib with Sr(NO3)2 and H2mda in the presence of MnCl2 and Et3N in acetonitrile. The use of MnCl2 is key to the isolation of I as high-quality colorless crystals in good yield. The molecular solid-state structure of I was determined by single-crystal X-ray diffraction. Compound I crystallizes in the monoclinic space group P21/c and shows a one-dimensional polymeric chain structure. Each monomeric unit of this coordination polymer consists of a central SrII ion in the NO8 coordination environment of two deprotonated ib− ligands and one fully protonated H2mda ligand. The C and O atoms of the H2mda ligand were refined as disordered over two sets of sites with site occupancies of 0.619 (3) and 0.381 (3). Compound I shows thermal stability up to 130°C in air.

Crystal structure and photoluminescence properties of a new CdIIcoordination polymercatena-poly[bis[4-bromo-2-({[2-(pyrrolidin-1-yl)ethyl]imino}methyl)phenolato-κ3N,N′,O]di-μ3-chlorido-di-μ2-chlorido-bis(methanol-κO)tricadmium(II)]

2016 ◽  
Vol 72 (5) ◽  
pp. 426-431 ◽  
Author(s):  
Yasemin Yahsi ◽  
Hatice Ozbek ◽  
Muhittin Aygun ◽  
Hulya Kara
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Schiff Base Complex ◽  
Photoluminescence Properties ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
Distorted Octahedral ◽  
Elemental Analyses ◽  
Schiff Base Metal Complexes ◽  
Tridentate Schiff Base

Schiff base–metal complexes have been used widely as catalysts for many organic reactions, such as ring-opening polymerization and oxidation. In view of the importance of CdIIcoordination polymers and in an effort to enlarge the library of such complexes, the title novel polymeric CdIItridentate Schiff base complex, [Cd3(C13H16BrN2O)2Cl4(CH4O)2]n, has been synthesized and characterized by elemental analyses, UV and IR spectroscopies, and single-crystal X-ray diffraction. The complex crystallizes in the triclinicP\overline{1} space group with two symmetry-independent CdIIatoms, one of which lies on an inversion centre, and analysis of the crystal structure shows that both CdIIatoms are six-coordinated; the environment around one CdIIatom can be described as distorted octahedral, while that around the second CdIIatom is octahedral. The CdIIatoms are linked by chloride ligands to form a one-dimensional coordination polymer. The nonbonding intermolecular Cd...Cd distances are 3.7009 (4) and 4.3563 (5) Å. Furthermore, the photoluminescence properties of the complex have been investigated and it displays a strong red emission in the solid state at room temperature.

Hydrothermal Synthesis and Crystal Structure of a One-dimensional Cobalt (II) Coordination Polymer with Two Organic Ligands

2014 ◽  
Vol 69 (6) ◽  
pp. 699-703
Author(s):  
You-Jing Huang-Fu ◽  
Hui Pan ◽  
Xi-Cai Hao ◽  
Yan Bai ◽  
Dong-Bin Dang
Keyword(s):  
Coordination Polymer ◽  
Supramolecular Network ◽  
Coordination Environment ◽  
Synthesis And Crystal Structure ◽  
Distorted Octahedral ◽  
Vis Spectroscopy ◽  
A Chain ◽  
Coordinated Water ◽  
Oxygen Donors ◽  
Distorted Octahedral Coordination Environment

A new Co(II) coordination polymer [Co(Hdpa)2(dpdo)(H2O)2] (1) (H2dpa=2,2`-biphenyldicarboxylic acid, dpdo=4,4`-bipyridine-N,N`-dioxide) has been synthesized and characterized by IR and UV=Vis spectroscopy, elemental analysis, and single-crystal X-ray structure analysis. The Co(II) atom has a distorted octahedral coordination environment with a set of oxygen donors from two Hdpa- ligands, two dpdo ligands and two coordinated water molecules. Adjacent cobalt centers are bridged by dpdo ligands thereby generating a chain. In the solid state, the chains further interact with each other and form a 3D supramolecular network via C-H···π interactions and multiform hydrogen bonds.

scholarly journals Crystal structure of a CoIIcoordination polymer:catena-poly[[μ-aqua-bis(μ-2-methylpropanoato)-κ2O:O′;κ2O:O-cobalt(II)] monohydrate]

2017 ◽  
Vol 73 (3) ◽  
pp. 318-321
Author(s):  
Andrei I. Fischer ◽  
Vladislav V. Gurzhiy ◽  
Julia V. Aleksandrova ◽  
Maria I. Pakina
Keyword(s):  
Polymeric Chain ◽  
Water Molecules ◽  
Carboxylate Ligands ◽  
Coordination Environment ◽  
One Dimensional ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Polymeric Chains ◽  
Distorted Octahedral Coordination Environment

In the title cobalt(II) coordination polymer with isobutyrate ligands, {[Co{CH(CH3)2CO2}2(H2O)]·H2O}n, the Co2+ion is hexacoordinated in a slightly distorted octahedral coordination environment defined by two O atoms from two bridging water molecules and four O atoms from four bridging carboxylate ligands. The carboxylates adopt two different coordination modes, μ-(κ2O:O′) and μ-(κ2O:O), forming a one-dimensional polymeric chain extending along [010]. The intra-chain cobalt...cobalt separation is 3.2029 (2) Å. The polymeric chains are linked by hydrogen bonds involving the water molecules of solvation, giving a two-dimensional network structure lying parallel to (100).

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